Rotary bar door fastener



u y 5, 1950 R. 4. OLANDER 2,516,336

ROTARY BAR noon FASTENER Filed April 24, 1947 3 Sheets-Sheet l inve-n t or: RoZamZ IOZandw:

July 25, 1950 R J. OLANDER ROTARY BAR noon FASTENER 3 Sheets-Sheet 2 Filed April 24. 1947 u i I p 1 u In Ve 22/02: 7% o land .I OZander.

July 25, 1950 R, J. OLANDER 2,516,336v

ROTARY BAR nooa FASTENER Filed April 24, 1947 s Sheets-Shet :5

Patented July 25, 1950 ROTARY BAR DOOR FASTENER Roland J. Olander, Chicago, 111., assignor to W. H.

Miner, Inc, Chicago, 111., a corporation of Delaware Application April 24, 1947, Serial No. 743,557

. 9 Claims.

This invention relates to improvements in rotary bar door fasteners for hinged doors, and more particularly for hinged doors of automobile trucks.

One object of the invention is to provide a door fastener for automobile trucks having the doors at the rear end of the truck body, comprising a rotary operating bar mounted on the truck door, having keeper engaging means at the top and bottom ends thereof, cooperating with keeper means mounted on the truck above and below the door opening, wherein the lower keeper is located inwardly of the rear end of the truck in out of the way position to protect the same against damage when the truck is backed against any object, such as a loading platform or wall of a building, and wherein the lower keeper engaging means is particularly designed to cooperate with a keeper so located.

A more specific object of the invention is to provide a door fastener of the character described in the preceding paragraph, wherein the lower keeper is provided with a cam slot and the lower keeper engaging means includes a link having a lug engageable in the cam slot of the keeper and actuated by a crank arm on the rotary operating bar to force the door open and closed by camming engagement with the keeper as the bar is rotated in reverse directions.

Other objects of the invention will more clearly appear from the description and claims hereinafter following. o

In the accompanying drawings forming a part of this specification, Figure 1 is a rear elevational view of a portion of the body of an automobile truck provided with a door opening and a pair of hinged doors, showing the doors closed, and illustrating my improvements in connection therewith. Figure 2 is an enlarged elevational view of the mechanism at the lower left hand corner portion of the right hand door, as seen in Figure 1. Figure 3 is a vertical sectional view, corresponding substantially to the line 33 of Figure 2, showing the rotary operating bar in elevation, and the keeper engaging means at the lower end of the bar in elevation and partly in section. Figure 4 is a horizontal sectional View, corresponding substantiallytothe line 4-4 of Figure 3. Figures 5 and 6 are views similar to Figure 4, showing, respectively, the parts in the positions occupied at the beginning of the door opening operation and the positions of the same when the door has been forced partly open. Figure '7 is an elevational view of a portion of the end sill of the truck and the associated keeper.

Figure 8 is a view, similar to Figure 4, showing the keeper engaging link member in full lines in position to enter the cam slot of the keeper at the beginning of the door closing operation, and illustrating in dotted circles the path of travel of the keeper engaging lugs of the link in camming the door shut, the door being shown in dotted lines and the keeper engaging link being shown in dotted lines in the position occupied when the door is completely closed. Figure 9 is a horizontal view, through the lower keeper, showing the link in plan, illustrating the manner of guiding the latter in its swinging movement.

In said drawings, 10 indicates the rear wall of the body of an automobile truck having a door opening ll therein, closed by a pair of hinged doors l2 and [3. Each door is provided with the usual hinges l4l4 along the vertical outer side edges thereof. As is common practice, the door l2, which is that first closed, and the door i3 have their meeting edges beveled and so inclined that the door I2 will maintain the door l3 in closed position and wedge the same shut when the door fastener is actuated to force the door l2 closed.

Referring to the drawings, my improved door fastener comprises broadly a rotary operating or looking bar A, an upper keeper engaging crank member B on the bar, a lower keeper engaging link C, a crank member D at the lower end of the bar for actuating the link C, an upper keeper E, a lower keeper F, an operating handle lever G for the bar A, an upper bearing bracket H fixed to the door l2 and rotatably supporting the bar at its upper end, and a lower combined bearing and guide bracket K fixed to the door [2, rotatably supporting the bar at its lower end and supporting and guiding the link 0 for sliding and swinging movement.

The operating bar A is in the form of an elongated member of rectangular, transverse cross section and has the members B and D riveted thereto. Each member B and D has a forked portion l5 which embraces the bar A at opposite sides and has rivet members extending therethrough and through the bar. Outwardly of the forked portion, each end member has a cylindrical portion l6, which is rotatably supported in the corresponding bracket H or K. The upper bearing bracket H, which is fixed to the door I2 at the upper end thereof, is of well-known design, being of the usual character employed in door fasteners of the rotary bar type, and therefore needs no further description. Intermediate the each member B and D is provided with a radially l0,

projecting crank arm l9. The crank arm [9 of" the upper membe B has the usualkeepegengaging pin 20 at its outer end, which has camming engagement with the upper-keeperE- and;

operates in the usual well -known manner forcing the door open and closed. The keeper E is of the usual type employed-sin rotary, door, fasteners, being provided with an inclined cam slot 2| with which the pinjil is engageable. The

crank arm 19 of the member D has a crank pin -22'-'atits outer--end=; which operatively'connects this crankarm te the keeper engaging link 6; as hereinafterpointed oute The combined abearing and g-uide bracket K; in which the cylindrical portion I6=-ofthe-crankmember- -D -is journaled,is-vertically divided and comprises -abackplate 23* and acover plate 24",- each provided with partial bearing openings; to-- getherforming thecompletebearing opening of the-bracket; which-is in-theform of a lengthwise extending, 1 vertical bore 25,; in'which the cylinhas securing" flanges 25-26 at opposite sides thereof, and the bracket K is fixed to the door by bolts for similar securing elements 21 extending through the-flanges ifi' fliythebackplate 23; and the; door.

stirrup member 28; whichis continuouswith said plate and-formsf supporting and gluidemeans for thekeeper engaging link 9. Y The mai'n-bodyportionof the stirrup member 28-extends-rearwardly beneath-the doori2 and comprises'a horizontal top wall-19, a-horizontal--bottomwall -3t and laterally spaced side walls 3-| and 32': r The bottonrwall 30 extends forwardly from'the-mainb'cdyportionof the bracket to provideaprojecting' shelpportion'," which forms a continuation of said bottom wall; Fer-wardly of=the side wall3 l; the shel-f portion of'the bottom'wall is braced-byan" upstanding, laterallyyinwardly curved" flange 33; along its edge, whichisa continuation of the At the rear side thereof; the main body portion ofthe stirrup 28 is provided with a laterally inwardly extending, vertical wall- 34 terminating in a thickened rounded edge-portion--- forming" a guide member or cam -projection 35- side Wall 31- for the link C: On the inner side thereof; the walhS- I has an inward enlargement thereon be-; tween its front and rear ends, which-forms-a-- rounded -camportion 36; which is-located-forwardly offset'with respect-to the" cam projection 35'fand is laterally spacedtherefrom.

The-keeper'engaging link C'is guided withinthestirrup; 28 for sliding" and swinging move-- ment; being supported on the bottom wall 30 and" guided'between the cam projections-fiend The front end-of the link- 0 is operatively connectedto the outer endof-tlre crank arm of =-the-- lower crankmember D; the same being provided withga bearing opening 31 in which the crank-pin; 2f is j'ournaled; The opposite or rearend ofthe link'C extends rearwardlybeyond the stirrup 28* andhas vertically-aligned} upstanding and depending keeperengaging cam=-lugs 38--38 =at said-' 751-.

The back'plate 23-is providedwith a=depending- 4 end, forming, in effect, a T-headed cam portion, adapted to cooperate with the keeper F.

The keeper F, with which the link C is engageable, is in the form of a boxlike casting fixed to the inner side of the vertical web 39 of the end sill 40 of the automobile truck. The boxlike lower keeper F is open at the forward side and is provided with side :fi'anges Mes-Ii] bordering said opening, which fit'ina rectangular opening 42 provided in the web of the end sill All.

The keeper F also has laterally projecting flanges 4 3g-;4 3; at opposite sides thereof for mounting the same on the end sill 48, the keeper being riveted in place on the sill by rivets 44-44 extendingthrough said flanges and the web 39 of the sill.

Thesmaimzbodygof the boxlike keeper F comprises horizontally disposed, top and bottom wails Hi &5,- a rearwardly extending, relatively short, vertical side wall 46, and a vertical rear wall 4"! inclined away fromsthe webfiihof the-:silLM. The wallifl is rounded as indicated:at-Miat its=junjc.-l. tion 'with the'side' wall- 46% Aeshowlni in Eigures; 4, 5, 6, and 8, the side wall 46 is at the left (hands; end :of-"the keeper and the rear wall lfliextends from this wall' to the righthand end of-saidkeeper; beinginclined 'away f-rom the end sillsin a direca. tion' fronr'right 'to left The walle 45; 48-;and 41' ofthen keeperv define an outward-ly opening pocket inwhich the-i T shaped cam head of -the-dink C is adapted" to. operate: Opposed to the inclinedwall M: at the frontport-iorr ofthe -keeper, thatcpemdbottom wa-11s;- thereof are-provided with depending s and. upstanding: aligned, inturned: guide flanges 49-'*--49-whicl-r extend -f-rom the wall: 45 toward the-opposite end of the-kecper,- but terminate short ofsaid end} thus l'eavi-ng openi-ngs 50 -50 through -which the' cam lugs 3838'-ot the-linkare adaptedto freely-passe The fianges- 49=-49 are relativelw wide andtaperoutwardly, as: shown, the inner'edges ofthe-same-bei-ng inclinedmane; same direction as the-wall 411 The inner end -portions of theinner edges of the flanges t9-4 9 -are'- elf-set outwardly with respect to the outerend-portions thereof?as indicated at51-4344 A-t= the-offsetwf the inner-edge of-each-flange--4S-$ the edge is round-edconcas elytmprovideazseat 52 for the corresponding lug -3 8 -of--the link-C1 The-vertical ;spacing-'=betweenthe flanges ZS- 49 issuch as -to-freelyaccemmodate the link there-r between, this space being in the form-0P2, guide slotin which-the-link operates I As will be evident} the inclined inner edgeswfthe-flangest ,-,48--49'*-andtheopposite inclined walltl l or the securedto=- the-bar A so that it maybedropped:

to-pendant -position Whenin horizontal pcsi-.--. tionfthel'ever'Gserves as-a lrandle member --for=- rotating} the-ba-rand islecked to-theusual latch-.- means to secureathe. deer i'n-mlosed' position. opera-ting the banmby the.=lever-,- the latter has swingingmovement in a: horizontal path'th-rough an angleofapproximately degrees. The-ro tation of the ban-A in reverses directions effects reciprocation" of the keeper engaging 0; througl r' the action-ofthe lower prank member D; to slide thee keeper inwardly and outwardly-.- of the guidestirrupiBt While being thus -recip--. rceated} the-dink is guided foz lateral 1 swinging. movementby the cam projections 35' and 36s -c peration. ofiimyuimproveds; door. f astenery amasseper keeper E. To force the door, [2 open, .the

operating ,bar A is rotated in contraclockwise direction, asviewed in Figure 4. Rotation of the bar in this direction forces-the door open by camming engagement of the-upper keeper engaging crank member Bwithin the slot of the upper keeper E and by cammingi engagement of the link C with the lowerkeeperF, the upper keeper engaging member operating in the usual well-known manner. As the bar is thus being rotated, thekeeper engaging link C'is moved from the position shown in Figure 4, through the position shown in Figure 5, to the position shown in Figure 6, by rotation of the lower crank member D, the link being guided between the cam lugs 35 and 36 to swing and travel along the inclined wall 4'! of the keeper F, positively forcing the door outwardly. As will be evident, when the parts reach the positions shown in Figure 6, the cam lugs S8-38 of the link C are positioned to pass through the openings 50--50 of the cam slots of the keeper F, permitting the door to be manually swung to fully open position.

In closing the door 12, the same is swung partially shut, thereby entering the keeper engaging crank pin 20 of the upper keeper engaging member and the keeper engaging lugs 38--38 of the link C within the openings of the keepers. With the parts thus positioned, rotation of the bar A in clockwise direction, as viewed in Figure 8, forces the door tightly closed by camming engagement in the usual manner of the upper keeper engaging crank member B with the keeper E, and camming engagement of the link C with the lower keeper F. As'the bar A is thus rotated in clockwise direction, the lower crank member D actuates the link C, guided by the cam projections 35 and 36 of the stirrup 28, to move the same from the full line position shown in Figure 8 to the full line position shown in Figure 4, the cam lugs 3838 of the link C travelling along the inner edges of the cam flanges ie-49, as shown diagrammatically by dotted circles 55, 55, and 56 in Figure 8, thereby forcing the door l2 tightly closed and looking it in said closed position by seating of the lugs 38--38 in the seats 52-52 of the flanges 4949.

I claim:

1. In a door fastener for a hinged door of a container having a fixed keeper thereon inwardly of the plane of the door when closed, the combination with a rotary operating bar mounted on the door; of guide means on the door; and a sliding and laterally swingable keeper engaging member mounted on the door and actuated by said bar, said keeper engaging member having one end thereof projecting inwardly of the plane of the door and having a lug on said projecting end engageable with said keeper.

2. In a door fastener for a hinged door of a container having a fixed keeper mounted thereon inwardly of the plane of the door when closed, the combination with a rotary operating bar mounted on the door; of a crank member on said bar; a keeper engaging link actuated by said crank member; and guide means on the door for guiding the link for Ireciprocating; and swinging movement, said? link extending inwardly of the;

plane of. the door. and-having keeper engaging means at theend thereof remote from said crank 1member.Y:JJ-. 1 i 3. In a door fastener .for' a hinged door of a container having a fixed slotted keeper mounted thereon, the combination with a rotary operating bar mounted-on the-door; of 'a crank arm extending radially from the end of the bar; a crank pin-at the outer-end of said arm; a link connectedat-one end to said crank pin of said crank arm ajkeeper engaging cam lug at the other end'of saidflink engageable within the slot of said keepen i, l

"4. In a door fastener for .a hinged door of a container provided with a fixed keeper mounted thereon having a cam slot therein, the combination with a rotary operating bar supported on the door; of a crank arm extending radially from said bar; a link operatively connected at one end to said crank arm to be reciprooated thereby; a guide member on said door within which said link is slidable; cam projections on said guide member at opposite sides of said link for guiding said link for swinging movement as it is reciprocated; and a cam lug on the other end of said link engageable within the cam slot of said keeper.

5. In a door fastener for a hinged door of a container having a fixed outwardly opening slotted keeper mounted thereon adjacent said door, the combination with an operating bar rotatably supported on the door; of a supporting guide stirrup on the door; a link slidingly guided in said-stirrup; a radially extending crank arm on said bar; a crank pin at the outer end of said arm journaled in one end of said link; guide means on said stirrup for guiding said link for swinging movement as it is reciprocated by rotation of said bar; and a keeper engaging cam lug at the other end of said link engageable within the slot of said keeper.

6. In a door fastener for a hinged door of a container, the combination with a rotary operating bar mounted on said door; of a keeper engaging member on said door actuated by rotation of said bar, said keeper engaging member having a T-headed cam portion presenting oppositely extending keeper engaging cam lugs.

7. In a door fastener for a hinged door of a container, the combination with a rotary operating bar on said door; of a radial crank arm on said bar; a link connected at one end to said crank arm to be reciprocated thereby; a guide member on said door slidably supporting said link; means on said guide member for guiding said link swinging movement as the same is reciprocated; and top and bottom keeper engaging cam lugs at the other end of said link.

8. In a door fastener for a hinged door of a container provided with a fixed keeper thereon mounted adjacent said door, and having an outwardly opening cam slot therein, the combination with an operating bar rotatably supported on the door; of a radially extending crank arm on said bar having a crank pin at the outer end thereof; a link connected at one end to said crank pin, and having a keeper engaging cam projection at the other end engageable within the cam slot of said keeper; a guide stirrup on said door imwmm Sam: 11mm swam-gu ded we imam out? movement-:4 anmgm-de projections afiopposite: side's: or said stirrup between which sa'idi 111mm slimmer znd 'gu ided for swinging: movement of the end thereof which is provided with theike'eper engaging cam: projection 9h Ima; door? fastener for a hinged; door? of: an container'providedzwithaaifixed vkeepen mounted below- "said door and: having; an outwardly open-f ingcamqlot therein; the combinationwith a vetticallydisposedyotam operating-baron the doqrg ofi afidepending guide: stirrup. onthe doom extez xd; mg beneath the same a link horizontall slidabl m said guide stirrup aJ crarflimember operatively conneting; the outer end' of: said linlii to seminar" to Be reciprocated' by? rof'atiofi' o'f "flie' letter; keeper n'ga gin'gf cam meafls' on 'tfie'ifiiief e'fi'cfs of said link ofiftively e'figfig'eab1"wi thih' the slot of said keeper; and means on said s'tir'ifi'fl tfbr uidmgi sal'c'r'i link" fol swinging" movement about theicoxinectiun fihere'ofwith said ''rank memberto effect Gamm i-ng action ofi saiid keeper UNITED STATES PATENTS are of reeora In" 

